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The difference of display cooler refrigeration system

The difference of display cooler refrigeration system ①Compressor comparison R12 and R600a compressors both use mineral oil, but the R600a display cooler compressor cylinder is about 70% larger than the R12 compressor cylinder. In addition to using vinegar oil, R134a has higher performance than R12 compressor in other aspects. ② Dry filter comparison R600a must use HX-9 dry filter, R134a mus...

walk-in display coolersTIME：2016-08-22
Commercial refrigeration refrigerant mixing matters needing attention

commercial refrigeration refrigerant mixing matters Exchange of R12 and mixed refrigerants Because of the similar characteristics of R12 and mixed refrigerants, the two refrigerants are interchangeable during maintenance, but they are The following points should be noted during commercial refrigeration maintenance: ①The filling volume of the mixed working fluid is 25%-40% less than that of R...

display refrigeratorTIME：2016-08-22
Analysis of automatic control of ammonia display cooler refrigeration device

Analysis of automatic control of ammonia display cooler refrigeration device 1) Temperature adjustment and control components: temperature controller 15, electromagnetic pilot valve 7, main valve 6, air cooler 17, ammonia pump 13. Principle of temperature regulation: When the display cooler temperature is higher than the upper limit of the given temperature, the temperature controller contac...

walk-in display coolersTIME：2016-08-22
Analysis of automatic control of ammonia walk-in cooler refrigeration equipment (2)

Analysis of automatic control of ammonia walk-in cooler refrigeration equipment (2) Low pressure accumulator liquid level adjustment control elements: solenoid valve 7, main valve 6 , Remote control level gauge 9. (1) Principle of normal liquid level adjustment: When the liquid level drops to the lower limit, the remote control level gauge sends a signal to open the solenoid pilot valve and ...

commercial refrigerationTIME：2016-08-22
Analysis of automatic control of ammonia walk-in cooler refrigeration device (3)

Analysis of automatic control of ammonia walk-in cooler refrigeration device (3) Compressor energy regulation energy regulating components: temperature controller 15, high and low pressure controller 19. Energy regulation principle: The energy regulation of the compressor is realized by the pressure controller to control the suction pressure. The energy adjustment process is as follows. (1...

display freezerTIME：2016-08-22
What are the reasons for the uncooling of display cases? What display cases are good?

　　Some customers will encounter such a situation. After the display cases are used for a long time, there will be leakage and uncooling problems. How to solve these problems? Next, refrigerated showcase commercial refrigeration will explain in detail the leakage problem of display cases. 　　 display cases Leakage is mostly due to the long service time of Jiangxi display cases, which leads to...

display freezerTIME：2016-08-22
Analysis of five common faults of display cooler and their treatment methods

The rapid development of the refrigeration industry, the use of display cooler naturally becomes more and more popular. When using the display cooler, failures are inevitable. How to find them in time The most fundamental thing is to deal with the cause of the failure. The following refrigerated showcase display cooler recommends some common display cooler failures and solutions. 1. ...

display freezerTIME：2016-08-22
Commercial refrigeration maintenance experience

commercial refrigeration maintenance experience ordinary commercial refrigeration maintenance experience electrical system maintenance experience The highest failure rate of the electrical system is the overload protector and the starter, followed by the thermostat, the compressor failure rate is very low. Check the internal electrical system of the commercial refrigeration. Do not disassemb...

walk-in display coolersTIME：2016-08-22
Display cases What are the maintenance experiences (2)

display cases Maintenance experience Method of measuring the compressor inlet voltage Open the compressor accessory box, place the multimeter in the AC 220V block, and the red and black test leads respectively touch the inlet terminals of the overload protector and start Adapter incoming terminal. If the multimeter reads about 220V, it means that the compressor has introduced normal working vo...

commercial refrigerationTIME：2016-08-22
Supermarket display cases What are the safety protection originals of the refrigeration system

display cases Safety protection of the refrigeration system Supermarket display cases Protective components: high and low pressure controller 19, oil pressure difference controller 18, thermal relay, water solenoid valve, transistor level relay . (1) Principle of high and low pressure protection: When the high pressure of the system exceeds the upper limit of the safety pressure setting valu...

walk-in display coolersTIME：2016-08-22

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